The import keyword is used to import a library
In [2]:
import math
print(math.cos(math.pi / 2))
6.123233995736766e-17
Pandas¶
In [1]:
import numpy
import pandas
rows = ['line1', 'line2', 'line3', 'line4', 'line5']
cols = ['col1', 'col2', 'col3', 'col4']
from IPython.display import display
dataframe = pandas.DataFrame(numpy.random.randn(5,4), index=rows, columns=cols)
display(dataframe)
col1 | col2 | col3 | col4 | |
---|---|---|---|---|
line1 | -0.882125 | 2.176452 | 0.163955 | -0.618232 |
line2 | -0.721538 | 0.035578 | 0.180072 | 1.015987 |
line3 | -1.162355 | 0.384632 | -0.674092 | 0.162693 |
line4 | -1.399455 | -0.698512 | 0.039420 | 0.898408 |
line5 | 1.755342 | -0.073242 | -1.502503 | -0.586194 |
reorganise a dataframe from datas as a dictionary with tuples as keys¶
In [2]:
dico = {('john', 'Snow') : 12, ('Paul', 'Durand') : 13, ("Pierre", "Dupont") : 16, ("Cerise", "Lanister") : 14}
import pandas
df = pandas.Series(dico).reset_index()
df.columns = ['Column 1', 'Column 2', 'Column 3']
from IPython.display import display
display(df)
Column 1 | Column 2 | Column 3 | |
---|---|---|---|
0 | Cerise | Lanister | 14 |
1 | Paul | Durand | 13 |
2 | Pierre | Dupont | 16 |
3 | john | Snow | 12 |